cloud Databases Custom backup

[lpatte]

Description

Add field to let user define custom backup region, following the API.

Fixes asked feature on Discord

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)
• Improvement (improve existing resource(s) or datasource(s))
• Documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A: make testacc TESTARGS="-run TestAccCloudProjectDatabaseDataSource_basic"
• Test B: make testacc TESTARGS="-run TestAccCloudProjectDatabase_basic"

Try locally with a resource

resource "ovh_cloud_project_database" "postgresql" {
  service_name = "xxxxxxxxxx"
  description = "postgresql-impolite-dirac"
  engine = "postgresql"
  version = "16"
  plan = "essential"
  flavor = "db1-7"
  nodes {
    region = "GRA"
  }
  backup_regions = ["GRA", "WAW"] # Default value is ["GRA", "SBG"]
  backup_time    = "02:00:00"  # Default value is "04:00:00"
}

[amstuta]

all CloudProjectDatabase tests are failing with error: OVHcloud API error (status code 400): Client::BadRequest: \"[backups.time] Given data () is not valid for type time. Expecting ISO 8601 data, such as \\\"15:04:05\\\"\"

[amstuta]

Suggested change

	Description: "List of region where backups are pushed. Not more than 1 regions for MongoDB. Not more than 2 regions for the other engines with one which is the same as the nodes[].region field",
	Description: "List of region where backups are pushed. Not more than 1 regions for MongoDB. Not more than 2 regions for the other engines with one being the same as the nodes[].region field",